Interior and exterior surfaces
Ferrous and non-ferrous substrates
Excellent protection for interior wood
Shop and field application
Superior weathering and durability Chemical resistant
Decorative uses over PC4 topcoat
Gloss, semi-gloss, satin, eggshell, matte
Anti-graffiti formulations available
|% SOLIDS by volume||30% as packaged, 35% as applied|
|SPRAYABLE VOC (as applied)||250 g/l, 2.8 lbs/gal, 3.5 lbs/gal & 4.3 lbs/gal (less|
|water & exempt compounds) available|
|COMPONENTS||PC4 clear coat (resin) 4 parts / PC-04 (cure) 1 part|
|POT LIFE||3 hours @ 70° F, 21° C|
|SHELF LIFE||one year (unopened)|
|REDUCERS||optional: use PCI’s 16050 VOC Exempt Reducer|
|FLASH POINT||65° F, 18° C|
|MIX RATIO||4:1 (4 parts PC4 clear coat : 1 part PC-04 Activator)|
|RECOMMENDED DRY FILM THICKNESS||1.0 mils to 3.0 mils|
|THEORETICAL COVERAGE||561 – 187 sq ft at recommended DFT (no loss)|
PC4 Series Clear Coat may be applied over properly prepared substrates including steel, aluminum, galvanizing, decorative metals such as copper and brass, masonry block, and interior wood. Not recommended for exterior wood. Recommended preparation is as follows:
Steel, Brass, Copper – Clean the surface of all foreign material SSPC-SP1 and SSPC-SP2 or SSPC-SP3, 6, or 7. Clean to eliminate all oil, grease and soap film contamination.
Aluminum & Galvanizing – Clean the surface of all foreign material SSPC-SP1 and SSPC-SP2 or SSPC-SP3, 6, or 7. Clean to eliminate all oil, grease and soap film contamination.
Wood – Sand to appropriate smoothness. Clean to eliminate sanding dust and other contamination. Porous woods may require additional coats of clear.
Concrete & Masonry – Surface must be cured, clean, dry, and free of contamination and disintegrated or chalky materials. SSPC-SP13 may be used for surface preparation of concrete and masonry block.
PC4 Topcoat – PC4 Clear Coat may be applied directly over PC4 Acrylic Polyurethane Topcoat. Allow topcoat to flash 20 minutes before applying PC4 Clear Coat. After 24 hours, scuff sanding or a light abrasion may be required on the PC4 Acrylic Polyurethane Topcoat before clear coating. Use 320 grit paper of finer. PC4 Clear Coat can be cut and buffed to obtain a very high gloss, flaw free finish.
Stir or shake thoroughly to ensure uniform mixture. Mix 4 parts PC4 Acrylic Polyurethane Clear Coat with 1 part PC-04 Polyurethane Activator.
Reduction is not necessary. However, clear coat may be reduced up to 10% by volume using acetone or PCI’s 16050 VOC Exempt Reducer.
For faster cure times, add up to 8 oz of PCI’s 12030 Urethane Accelerator per activated gallon of clear coat.
For fisheyes or other related surface defects, add 1 oz of PCI’s Fisheye Remover, #15000, per activated gallon of clear coat.
Apply using 40-55 PSI at the gun for siphon and gravity feed spray guns, 10 PSI max. for HVLP spray guns. Apply 1-3 medium wet coats until desired coverage and flow is reached. Allow a 5 to 10 minute flash time between coats of clear. Recommended film thickness is 1.0 to 3.0 mils DFT.
|Type||Fluid Tip||Spraying Pressure|
|Siphon Feed||1.4mm – 1.7mm||40-65-PSI|
|Gravity Feed||1.3mm – 1.4mm||40-65 PSI|
|HVLP Siphon||1.6mm – 1.8mm||max. 10 PSI @ the air cap|
|HVLP Gravity||1.3mm – 1.5mm||max. 10 PSI @ the air cap|
|Pressure Pot||1.1 mm- 1.3 mm||29 PSI – 58 PSI|
PC4 Acrylic Polyurethane Clear Coat may be air dried or force dried Dry times @ 70˚F (21˚C) and 50% RH
|Dust Free||15 minutes|
|Tack Free||3 hours|
|Dry Time||24 hours|
|Recoat||May be recoated with itself at any stage.|
|Sanding will become necessary after 24 hours.|
|Force Drying:||140˚ F for 20 min. Allow a 10 min. cool down time.|
Clean all spray equipment immediately after use. Acetone may be used to clean spray equipment. PCI’s 17000 Gun Cleaner is a VOC exempt cleaner and is recommended for cleaning application equipment used to apply the PC4 system.
Refer to Material Safety Data Sheet for proper handling of products listed in this bulletin.
DISCLAIMER: The technical information and suggestions for use have been complied for your guidance and usage. Such information is based on Precision Coatings experience and research and is believed to be reliable. As Precision Coatings has no control over conditions in which the product is used, stored, or otherwise handled, the above information does not constitute a warranty. Buyers must assume responsibility for the suitability of the product for their purposes.